import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

testing/modules/AppInfo.jsm

@@ -0,0 +1,133 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+this.EXPORTED_SYMBOLS = [
+  "newAppInfo",
+  "getAppInfo",
+  "updateAppInfo",
+];
+
+
+const {classes: Cc, interfaces: Ci, results: Cr, utils: Cu} = Components;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+
+let origPlatformInfo = Cc["@mozilla.org/xre/app-info;1"]
+    .getService(Ci.nsIPlatformInfo);
+
+/**
+ * Create new XULAppInfo instance with specified options.
+ *
+ * options is a object with following keys:
+ *   ID:              nsIXULAppInfo.ID
+ *   name:            nsIXULAppInfo.name
+ *   version:         nsIXULAppInfo.version
+ *   platformVersion: nsIXULAppInfo.platformVersion
+ *   OS:              nsIXULRuntime.OS
+ *
+ *   crashReporter:   nsICrashReporter interface is implemented if true
+ *   extraProps:      extra properties added to XULAppInfo
+ */
+this.newAppInfo = function (options={}) {
+  let ID = ("ID" in options) ? options.ID : "xpcshell@tests.mozilla.org";
+  let name = ("name" in options) ? options.name : "xpcshell";
+  let version = ("version" in options) ? options.version : "1";
+  let platformVersion
+      = ("platformVersion" in options) ? options.platformVersion : "p-ver";
+  let OS = ("OS" in options) ? options.OS : "XPCShell";
+  let extraProps = ("extraProps" in options) ? options.extraProps : {};
+
+  let appInfo = {
+    // nsIXULAppInfo
+    vendor: "Mozilla",
+    name: name,
+    ID: ID,
+    version: version,
+    appBuildID: "20160315",
+
+    // nsIPlatformInfo
+    platformVersion: platformVersion,
+    platformBuildID: origPlatformInfo.platformBuildID,
+
+    // nsIXULRuntime
+    inSafeMode: false,
+    logConsoleErrors: true,
+    OS: OS,
+    XPCOMABI: "noarch-spidermonkey",
+    invalidateCachesOnRestart() {},
+
+    // nsIWinAppHelper
+    get userCanElevate() {
+      return false;
+    },
+  };
+
+  let interfaces = [Ci.nsIXULAppInfo,
+                    Ci.nsIPlatformInfo,
+                    Ci.nsIXULRuntime];
+  if ("nsIWinAppHelper" in Ci) {
+    interfaces.push(Ci.nsIWinAppHelper);
+  }
+
+  if ("crashReporter" in options && options.crashReporter) {
+    // nsICrashReporter
+    appInfo.annotations = {};
+    appInfo.annotateCrashReport = function(key, data) {
+      this.annotations[key] = data;
+    };
+    interfaces.push(Ci.nsICrashReporter);
+  }
+
+  for (let key of Object.keys(extraProps)) {
+    appInfo.browserTabsRemoteAutostart = extraProps[key];
+  }
+
+  appInfo.QueryInterface = XPCOMUtils.generateQI(interfaces);
+
+  return appInfo;
+};
+
+var currentAppInfo = newAppInfo();
+
+/**
+ * Obtain a reference to the current object used to define XULAppInfo.
+ */
+this.getAppInfo = function () { return currentAppInfo; };
+
+/**
+ * Update the current application info.
+ *
+ * See newAppInfo for options.
+ *
+ * To change the current XULAppInfo, simply call this function. If there was
+ * a previously registered app info object, it will be unloaded and replaced.
+ */
+this.updateAppInfo = function (options) {
+  currentAppInfo = newAppInfo(options);
+
+  let id = Components.ID("{fbfae60b-64a4-44ef-a911-08ceb70b9f31}");
+  let cid = "@mozilla.org/xre/app-info;1";
+  let registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
+
+  // Unregister an existing factory if one exists.
+  try {
+    let existing = Components.manager.getClassObjectByContractID(cid, Ci.nsIFactory);
+    registrar.unregisterFactory(id, existing);
+  } catch (ex) {}
+
+  let factory = {
+    createInstance: function (outer, iid) {
+      if (outer != null) {
+        throw Cr.NS_ERROR_NO_AGGREGATION;
+      }
+
+      return currentAppInfo.QueryInterface(iid);
+    },
+  };
+
+  registrar.registerFactory(id, "XULAppInfo", cid, factory);
+};
+